Factor completely. If the polynomial cannot be factored, say it is prime.4x2 - 20x - 8x + 40
A. 4(x + 5)(x + 2)
B. (x - 5)(4x - 8)
C. (x - 5)(x - 2)
D. 4(x - 5)(x - 2)
Answer: D
Mathematics
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Solve the problem.The rate of growth of a microbe population is given by where x is time in days. What is the net growth between day 3 and day 7?
A. 117,238,789 B. 222,613,544 C. 222,613,533 D. 111,306,789
Mathematics
Write interval notation for the following. Then graph the interval on a number line.{x? x > 2.5}
A. [2.5, ?)
B. (2.5, ?)
C. (-?, 2.5)
D. (-?, 2.5]
Mathematics
Decide whether the relation is a function.
A. Function B. Not a function
Mathematics
Evaluate the sum.
A. -42 B. 34 C. 42 D. 2
Mathematics